Much of Union City was built between the 60s and 80s and is reaching full-system replacement age. Onzone handles whole-system HVAC installation across the city.
We install across Union City, including Decoto, Alvarado, and the Station District: furnace, AC, heat pump, and mini-split. Manual J sizing on every job, permits pulled, and a written proposal before anything is ordered.
Union City runs from the older Decoto and Alvarado neighborhoods to the newer Station District, so we see everything from tired original systems to recent builds. Full-system replacements and heat pump retrofits are the routine jobs, and the bay-flats location keeps site visits quick.
Union City sits on the bay flats where the climate stays mild, which is where a heat pump is most efficient. It runs heating and cooling off one electric system and earns BayREN, PG and E, and BAAQMD rebates, and we show the rebate math beside a like-for-like gas replacement on the quote.
You get a line-item proposal covering equipment, labor, permit, and disposal before anything is ordered. We pull the permit, handle the city inspection, and map any rebate you qualify for, so the price you approve is the price you pay.
If both are original and old, together is usually the better spend. We size them as a matched set and quote both options.
In the mild climate here, often yes, with real rebates. See heat pump installation.
Yes, permit, inspection, and rebate paperwork are all handled by us.
Also in Union City: AC Installation, Heat Pump Installation, Furnace Installation.
